Finding the Fourth Proportional to 455,885.21, 629,123.52 and 249,157.79
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Solution
The fourth proportional to 455,885.21, 629,123.52 and 249,157.79 is: 343,838.80
Step by Step Solution
- Step 1: Write the proportion equation
455,885.21 : 629,123.52 = 249,157.79 : x - Step 2: Convert to fraction form
455,885.21/629,123.52 = 249,157.79/x - Step 3: Cross multiply
455,885.21x = 629,123.52 × 249,157.79 - Step 4: Simplify right side
455,885.21x = 156,751,022,734.60 - Step 5: Solve for x
x = 156,751,022,734.60/455,885.21 - Step 6: Final answer
x = 343,838.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.